Thursday, June22, 2017 L-36.com


Marine Weather and Tides
Beloit, WI

Version 3.4
What's New / NOTES
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 5:17AMSunset 8:39PM Thursday June 22, 2017 6:57 PM CDT (23:57 UTC) Moonrise 4:13AMMoonset 7:00PM Illumination 2% Phase: Waning Crescent; Moon at 28 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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LMZ646 Wind Point Wi To Winthrop Harbor Il- 318 Pm Cdt Thu Jun 22 2017
.small craft advisory in effect until 7 pm cdt this evening...
Through early evening..Southwest wind 10 to 20 knots. Gusts up to 25 knots. Partly cloudy with a 20 percent chance of showers and Thunderstorms. Waves 2 to 4 feet, subsiding to 1 to 3 feet late in the afternoon.
Tonight..Southwest wind 10 to 15 knots, veering northwest early in the morning. Gusts up to 20 knots. Showers and Thunderstorms likely through around midnight, then showers and Thunderstorms after midnight. Waves 1 to 3 feet, building to 2 to 4 feet in the late evening and early morning, then subsiding to 1 to 3 feet early in the morning.
Friday..Northwest wind 10 to 15 knots. Gusts up to 20 knots late in the afternoon. Mostly Sunny. Waves 1 to 2 feet.
Friday night..Northwest wind 10 to 15 knots with gusts to around 20 knots. Partly cloudy. Waves 1 to 2 feet.
Saturday..West wind 10 to 15 knots with gusts to around 20 knots. Mostly Sunny. Waves 1 to 2 feet.
LMZ646 Expires:201706230915;;653699 FZUS53 KMKX 222018 NSHMKX Nearshore Marine Forecast National Weather Service MILWAUKEE/SULLIVAN WI 318 PM CDT Thu Jun 22 2017 For waters within five nautical miles of shore on Lake Michigan LMZ646-230915-

7 Day Forecast for Marine Location Near Beloit, WI
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location: 42.52, -89.05     debug


Area Discussion for - Milwaukee/Sullivan, WI
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Fxus63 kmkx 222042
afdmkx
area forecast discussion
national weather service milwaukee sullivan wi
342 pm cdt Thu jun 22 2017

Short term
Tonight... Forecast confidence is medium.

Latest SPC day 1 outlook has shifted most of the slight risk for
severe storms southward into northern illinois, with a marginal
risk across most of the area. This is mainly in response to most
of the area seeing cloudy skies with on and off showers and
isolated storms for most of the day. There have been some breaks
in the southern parts of the area, with the north remaining
cloudy.

The best mean layer CAPE will be south of the state line, with
lower values along with some mean layer CIN in most of the area.

The best deep layer shear is in northern portions of the area,
with lower amounts to the south. Thus, it appears that areas near
and south of the illinois border have the best shot at strong to
severe storms.

Mesoscale models still have convection developing across the area
by middle evening and pushing southeast with the cold front, with
the hrrr developing convection by 00z to the north of the area.

Continued high pops for thunderstorms tonight, ending northwest to
southeast later tonight. Gusty winds, hail and heavy rainfall
still are the main hazards, with the best chances for isolated
severe storms near the illinois border.

Friday through Monday... Forecast confidence medium.

A large polar trough will become established over much of ern
canada and the great lakes for the weekend into early next week.

Cold advection on nwly sfc winds will increase late Fri aft-eve
but high temps on Fri will reach 75-80f beforehand. Otherwise nwly
sfc winds and unseasonably cool temps will prevail for the
weekend and mon. High temps from 65-70f are expected with lows in
the upper 40s to middle 50s. A fairly strong shortwave trough will
bring good chances of showers Sat nt especially north of madison
and milwaukee. The chances of showers will continue for sun-mon
given cold temps aloft and potential weak vorticity maximums.

Long term Tuesday through Thursday... Forecast confidence
medium.

High pressure will finally settle over the area Mon nt-tue
followed by a pattern change to more zonal flow across the nrn
usa. Thus warmer temps and higher humidity expected ahead of an
approaching shortwave trough and cold front for wed-thu.

Aviation(21z tafs) Gusty south to southwest winds should
linger until early evening in southern portions of the area.

Weaker winds will be found in cloudy areas to the north. Ceilings
should remain above 3000 feet this afternoon.

Thunderstorms are expected to slide southeast across the area
tonight, from northwest to southeast. They will spread southeast
during the evening, then end later tonight. Look for visibilities
down to 2 miles, and ceilings down to around 2000 feet. These may
be lower in any stronger storms. Gusty winds, hail and heavy
rainfall are possible, with the best chances for isolated severe
storms near the illinois border.

May see ceilings around 2000 feet linger after the storms exit
the area later tonight into Friday morning, before mixing out.

West winds should become gusty by the afternoon hours. Some
diurnal cumulus clouds are possible as well.

Marine
Small craft advisory continues until 00z Friday south of port
washington. Gusty south to southwest winds are expected until
early evening before weakening.

Thunderstorms are then expected to slide southeastward across the
area tonight. The timing for the nearshore waters of lake
michigan should be generally between 03z and 09z Friday. The best
chances for isolated severe storms will be toward winthrop harbor
illinois. Gusty winds and hail are possible.

May see gusty west northwest winds reach small craft advisory
levels at times on Friday, with cooler and drier air moving into
the region. Good mixing and a tight pressure gradient will help
with mixing these gusts to the surface. Highest waves will be over
the open waters.

Mkx watches warnings advisories
Wi... None.

Lm... Small craft advisory until 7 pm cdt this evening for lmz644>646.

Tonight Friday and aviation marine... Wood
Friday night through Thursday... Gehring


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
KNSW3 - Kenosha, WI 66 mi57 min S 8 G 9.9 67°F 1005.4 hPa (-2.1)
WHRI2 - Waukegan Harbor, IL 66 mi77 min SW 14 G 20 83°F
MLWW3 - Milwaukee, WI 72 mi47 min NNE 7 G 8 70°F

Wind History for Calumet Harbor, IL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Janesville-Rock County, WI7 mi72 minSW 710.00 miMostly Cloudy84°F69°F62%1005.1 hPa
Rockford, Greater Rockford Airport, IL22 mi63 minSSW 18 G 2410.00 miPartly Cloudy and Breezy87°F68°F53%1004.7 hPa

Wind History from JVL (wind in knots)
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Last 24hrSW65CalmE5E5SE4CalmS6CalmS9SW8SW6SW13
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1 day agoN3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmSE6S5SE5S5SW5SE5SE12S12SE10
G15
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2 days agoW6W5W4W4W5CalmCalmCalmCalmCalmCalmCalmW6W7W9W9NE14N11NE13NE13SE8E5CalmN5

Tide / Current Tables for
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Tide / Current Tables for
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Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Midwest    EDIT
Geos

Wind Forecast for Milwaukee/Sullivan, WI (19,4,5,8)
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Ground Weather Radar Station Milwaukee, WI
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weather_mapweather_map weather_map

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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.